Take a tile for the edge of the wall and apply the adhesive to the back as if you were putting butter on a piece of toast.
Tiles sliding down wall.
However i have used blue painter tape to temporarily hold tiles in place.
Hold it tight for about 20 to 30 seconds.
It should not move.
If the bottom is not level then pick the low spot and measure one tile up from there and level over so you may need to cut slivers off the bottoms of some tiles but you d have to do that anyway.
Large heavy wall tiles are a challenge to hang because the weight of tiles makes them prone to slip off the wall.
But in reality floors often aren t level which means that approach would make your whole tile grid off level.
The thinset should not let the tiles moves.
Hang edge tiles by applying adhesive to the backs of the tiles.
Ferrante glued the tiles to the backer board with latex tile mastic not thinset mortar.
If the tile has been cut make sure you re placing it in the right spot.
Mark the top of the tile and then using your level transfer that mark all around the shower.
These step by step videos are designed to walk you through the entire process helping you with everyth.
Tiling around a tub shower overview gregory nemec.
In theory the easiest solution is to build from the bottom supporting the lowest tile course right on the floor and letting the upper courses rest on those.
Tiling a room can seem a daunting task to begin with.
However the methods shown here work on any wall tiles including stone and glass.
Place a field tile at your low point with a thin spacer underneath tile wedges or round toothpicks.
Then position the tile where it needs to go and add the spacers.
Lay out one course of your tile the width of the back wall first on the floor with your chosen spacing.